Pronunciation: (u-presh'un), [key]
1. the exercise of authority or power in a burdensome, cruel, or unjust manner.
2. an act or instance of oppressing.
3. the state of being oppressed.
4. the feeling of being heavily burdened, mentally or physically, by troubles, adverse conditions, anxiety, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.